40 HP Industrial Rotary Screw Compressors

40 hp compressors - ASD 40S-ASD 40ST

Kaeser's 40 HP Screw Compressor Models

Standard 40 HP Air Compressor

ASD 40 - 40 hp screw compressor

Kaeser's 40 hp rotary screw compressors with direct drive incorporate all standard Kaeser features, such as powder-coated enclosures, premium efficiency TEFC motors, and the SIGMA PROFILE airend. These units are available with integrated dryers and/or variable speed drive options.

40 HP Air Compressors with Integrated Dryers

BSD 40T - 40 hp screw compressor with dryer

The ASD 40ST, ASD 40T, and BSD 40T are rotary screw compressors with integrated refrigerated dryers sized for the full flow of the compressor. The dryer is located in a separate cabinet so it is not exposed to preheated air or contaminants from the compressor package.

Energy-Saving Control:

The integrated refrigerated dryer in "T” units provides high efficiency performance thanks to its energy saving control. The dryer is active only when compressed air actually needs to be dried. This approach achieves the required compressed air quality with maximum efficiency.

Eco-Drain:

The integrated refrigerated dryer also features a zero loss Eco-Drain. The advanced level-controlled condensate drain eliminates the compressed air losses associated with solenoid valve control. This saves energy and considerably enhances the reliability of the compressed air supply.

Climate-Friendly Design:

In addition to energy-saving controls, our integrated dryers feature the new R-513A refrigerant with 56% lower global warming potential than common dryer refrigerants. Combined with our advanced heat exchanger design, we need only half the refrigerant — resulting in the most climate-friendly dryer possible.

 
 

40HP Rotary Screw Compressor with Variable Speed Drive

SFC 30S - 40 hp screw compressor with variable speed drive

The SFC 30S and SFC 30 40-hp rotary screw compressors are the perfect solution for smaller compressed air systems with varying air demand to achieve significant energy savings while maintaining stable pressure. KAESER SFC units are up to 25% more efficient than the competition. Both units are available with an integrated dryer. Learn more about Kaeser's SFC series of compressors with variable speed drive.

power consumption vs flow rate

A variable speed screw compressor should be the most frequently loaded unit in a properly designed system. Each is optimized to deliver significantly more air with lower kW than comparable compressors.

 
 

AIRCENTER DUPLEX

Duplex with SK compressors

The 40-hp AIRCENTER DUPLEX includes two 20-hp rotary screw compressors mounted on a horizontal receiver tank with a refrigerated SECOTEC dryer, or two 20-hp compressors with integrated dryers mounted on two receiver tanks.

 
 

TECHNICAL SPECIFICATIONS


40 hp Screw Compressors: ASD Series

Direct-Drive Units

40 hp compressors - ASD 40S-ASD 40ST
Model Flow (cfm) Dimensions W x D x H (in) Weight (lb) Noise level (dB(A))
125 psig 175 psig 217 psig
ASD 40S 163 126 105 58 x 35 x 60 1540 67
ASD 40ST 70 x 35 x 60 1750
ASD 40 192 159 122 58 x 35 x 60 1570 69
ASD 40T 70 x 35 x 60 1779
40 hp compressors - ASD series
  • Super silenced with vibration-dampening
  • All panels powder-coated
  • Two-stage, 1 micron air intake filter
  • Integral moisture separator with zero-loss Eco-Drain
  • Electronic Thermal Management (ETM) system
  • 3-stage fluid separation system
40 hp Screw Compressors: BSD Series

Direct-Drive Units

40 hp compressors - BSD 40-BSD 40T
Model Flow (cfm) Dimensions W x D x H (in) Weight (lb) Noise level (dB(A))
125 psig 175 psig 217 psig
BSD 40 196 161 n/a 63 x 41 x 67 2072 72
BSD 40T 78 x 41 x 67 2359

  • Generously sized doors fully swing out or are easily removable
  • SIGMA CONTROL 2 signals when PM is due
  • Easy access inlet filter requires no special tools for servicing
  • Eco-friendly fluid filter element safe for thermal disposal
  • External drive motor grease fittings
  • Double vibration isolation ensures wiring and fluid connections stay tight
  • Coolers are easily cleaned
  • Fluid fill port conveniently placed
  • Fluid level easy to check
  • Separator design allows fast, complete fluid changes
40 hp Screw Compressors: SFC Series
40 hp compressors with variable speed drive - SFC 30S-SFC 30ST
Model Flow (cfm) Dimensions W x D x H (in) Weight (lb) Noise level (dB(A))
125 psig 175 psig 217 psig
SFC 30S 37-176* 34-145* n/a 61 x 35 x 60 1669 69
SFC 30ST 73 x 35 x 60 1878
SFC 30 49-208* 34-154* 32-132* 61 x 35 x 60 1753 70
SFC 30T 73 x 35 x 60 1962

* Min and max flow range

40 hp compressors with variable speed drive - SFC 30-SFC 30T
40 hp Screw Compressors: AIRCENTER DUPLEX
Duplex with SK compressors
Model Flow (cfm) Dimensions W x D x H (in) Weight (lb) Noise level (dB(A))
125 psig 160 psig 217 psig
AIRCENTER DUPLEX SK 20 (SECOTEC) 176 155 130 85 x 79 x 75 2848 68
AIRCENTER DUPLEX SK 20T 88 x 79 x 75 3026
 
 

Why Choose a KAESER 40 HP Rotary Screw Compressor?

Kaeser's 40-hp rotary screw air compressors provide outstanding efficiency and reliability. Featuring an energy-saving SIGMA PROFILE airend and a SIGMA CONTROL 2 controller, these compressors are designed to meet and exceed our customers' expectations, outperforming and outlasting other compressor solutions on the market.

Service-Friendly Compressor Design

From the ground up, these compressors have been designed with the user in mind. Fewer wearing parts and using premium quality materials ensure reduced maintenance requirements, longer service intervals, and extended service life. A smarter component layout with generously sized maintenance doors simplify service and lower your operating costs.

Guaranteed Efficiency

In our comprehensive design approach, KAESER chooses the components that work together in the most energy efficient way possible. Each and every component—from inlet filter to discharge flange—has been carefully selected with performance in mind. In fact, the ASD and BSD series are more efficient than the competition. With KAESER’s superior integrated controls, we guarantee an efficient system with lower operating costs, however small or large your demand may be.

Rugged Reliability

KAESER’s screw compressors meet our rigorous “built for a lifetime” standard. Designed and built with KAESER’s generations of compressed air experience, you can rest assured that these 40 hp compressors will continue to deliver the air you need with the exceptional reliability you expect from a KAESER compressor.

SIGMA Control 2: An Intelligent Compressor Control System

SIGMA CONTROL 2 compressor controller
  • Traffic-light LEDs for at-a-glance operational status
  • Easy-to-read display with 30 selectable languages 
  • Soft-touch icon buttons 
  • Fully-automatic monitoring and control
  • Dual, Quadro, Vario and Mono control modes available as standard 
  • Interfaces: Ethernet 
  • Additional optional communication modules for: Profibus DP, Modbus, Profinet and DeviceNet 
  • SD card slot for data logging and updates 
  • RFID reader 
  • Web server

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